On 11/06/2014 03:48 PM, Koen Kooi wrote:
Op 6 nov. 2014, om 08:32 heeft Chen Qi <qi.c...@windriver.com> het volgende
geschreven:
In systemd, /etc/sysctl.conf is actually ignored by systemd-sysctl,
because this command only examine *.conf files under a bunch of directories
like /etc/sysctl.d or /usr/lib/sysctl.d.
The problem is we are used to configuring kernel parameters in /etc/sysctl.conf,
so it would be really strange if the configuration in that file doesn't have any
effect.
This patch reference Fedora's solution to this problem, creating a symlink to
/etc/sysctl.conf under /etc/sysctl.d/.
Shouldn't this be done in procps instead?
Actually, the problem is not about `sysctl' command.
procps provides `sysctl', but busybox also provides this command.
It's very possible that on our generated image, procps is not installed
but `sysctl' command is available.
Both busybox's and procps's `sysctl' command takes /etc/sysctl.conf into
consideration.
Now, systemd provides a similar utility called `systemd-sysctl' which is
executed at boot time via systemd-sysctl.service.
So our actually problem is that systemd-sysctl ignores /etc/sysctl.conf,
which makes it somewhat strange, especially to users who are used to
configuring parameters in sysctl.conf.
And this patch solves this problem by adding a symlink under /etc/sysctl.d/.
That's why I think we should put this in systemd.
Best Regards,
Chen Qi
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